Reportedly 6,500 of these conversion revolvers were manufactured c. 1873-1875, and a very limited number were factory engraved. This revolver has "E" by the main serial numbers indicating designation by the factory for engraving and features the late "vine scroll" engraving typical of the factory engraving from Colt in this period. The left side of the frame has "COLTS/PATENT" inscribed rather than stamped, and the hammer has the wolf head motif. All of the visible serial numbers match. The barrel has the one-line New York address, the cylinder has the standard roll-scene, and the trigger guard has a "V" and "38 CAL" on the left (8 stamped over the original 6).

Very fine with crisp engraving, 70% original blue finish and case colors, smooth gray patina on the balance of the steel, 20% original silver plating concentrated in the protected areas of the grip frame, aged patina on the balance, and minor overall wear. The grip is also very fine and has 90% of the original high polish varnish remaining, a series of small dings on the left, and a couple of worn spots at the lower edges. Mechanically fine.